Case Presentation: We present a case of rapidly progressive Hypereosinophilic Syndrome (HES), a possible late complication of Sars-CoV-2 (COVID-19). A previously healthy 48-yr old male recovered from COVID-19 approximately 30 days before symptom onset. He had fevers, chills, diffuse abdominal pain with nausea, vomiting, and diarrhea with diffuse erythematous pruritic rash and Raynaud’s phenomenon (Image [...]